package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;

@Slf4j
@RestControllerAdvice(basePackages = {"com.atguigu.gulimall.product.controller"})
public class GulimallExceptionControllerAdvice {

    /**
     * 参数非法（效验参数）异常 MethodArgumentNotValidException
     *
     * @param e
     * @return
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e) {
        log.error("数据效验出现问题{},异常类型{}", e.getMessage(), e.getClass());
        BindingResult bindingResult = e.getBindingResult();

        HashMap<String, String> errMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach(fieldError ->
                errMap.put(fieldError.getField(), fieldError.getDefaultMessage()));

        return R.error(BizCodeEnum.VAILD_EXCEPTION.getCode(), BizCodeEnum.VAILD_EXCEPTION.getMessage()).put("data", errMap);
    }

    @ExceptionHandler(Throwable.class)
    public R handleException(Throwable throwable) {

        log.error("错误异常{}", throwable);

        return R.error(BizCodeEnum.UNKNOW_EXCEPTION.getCode(), BizCodeEnum.UNKNOW_EXCEPTION.getMessage());
    }
}
